A Pacemaker, a Reused Probe, and a History of Cold Sores

Not today - not without cardiology input. This is a proximity-and-current-path question, not a superstition about pacemakers.

Why it matters: a pacemaker senses tiny cardiac electrical signals. Electrolysis delivers current into tissue, and with blend or galvanic current the direct-current component and the return path matter. Modern devices are better shielded than older ones, but the safe answer depends on device type, lead configuration and where the treatment is relative to the chest. Chin and upper lip are close to the thorax; a current path running across the chest is the situation you want to avoid.

What you need first: written or verbal clearance from her cardiologist or device clinic, naming the modality they are comfortable with. Many will clear thermolysis with a short pulse and the return electrode placed so the current does not traverse the chest - for example, on the arm or shoulder on the same side, never hand-to-hand across the torso. Some will clear nothing. Her device card - manufacturer, model, implant date - belongs in the record.

What you can do today: consultation, patch test only if the clearance question is settled, treatment plan, and the paperwork for her to take to cardiology. Do not 'just do a few hairs to see how it goes' while the question is open; a few hairs is exactly the exposure you were worried about.

Document that treatment was deferred pending clearance, and why. If she is annoyed, the answer is: 'I would rather lose an appointment than find out the hard way.'

What is wrong: a probe is a needle that has been in tissue and in a follicle, which means it has contacted blood and lymph. Alcohol is a disinfectant at best, and a quick wipe does not achieve label contact time, does not reach the lumen or the shaft where it inserts into the holder, and is neutralized by organic material. It does not reliably inactivate what a probe actually carries. Reusing a probe means you cannot state that what entered the next client was sterile.

Correct handling:

• Probes are single-use and sterile, removed from sterile packaging in front of the client, used once, and discarded directly into a sharps container at the chair - not carried across the room, not set on a tray.
• Forceps, tweezers and the probe holder: these contact skin and sometimes blood. Clean with soap and water, dry, then either sterilize by autoclave (with spore testing on the required schedule) or, if the item is heat-sensitive and the rule allows, disinfect with an EPA-registered hospital-grade tuberculocidal product at full contact time.
• Single-use items - cotton, gloves, paper products - never reused.
• Hands: wash before and after each client and change gloves between clients; gloves do not substitute for hand washing.
• Sharps container replaced at the fill line, never overfilled.

The exam angle: the question is not 'was it wiped?' but 'could material from client A reach client B?' A wipe on a needle cannot answer that 'no.'

Today: postpone. Tingling this morning is a prodrome - the virus is reactivating and virus is being shed before a blister is visible. Inserting a probe into that area is inserting a needle through skin that is about to erupt, and electrolysis is a known trigger for reactivation. You would be causing the outbreak she is trying to avoid, and working in an area of active viral shedding.

What you say: 'That tingling is the start of a cold sore, even though nothing is visible yet. If I treat the lip today, you will very likely have a sore for your trip. I would rather reschedule you for when it has fully healed - usually about a week after it crusts over and the skin is normal again.' Then give her a real date, not 'call us.'

For future appointments:

• Treat the history as a routine flag on the record. Ask at every visit, before starting: any tingling, itching, burning or blister in the last two weeks?
• Active lesion or prodrome: postpone the area. Treat elsewhere only if she confirms and you avoid the site entirely.
• Between outbreaks she can be treated. Some physicians prescribe antiviral prophylaxis for clients whose outbreaks are consistently triggered by treatment - that is her prescriber's call, not yours; suggest she ask.
• Change gloves, do not touch the perioral area and then other equipment, and wash hands.

Document the deferral, the reason, and the reschedule advice, so the record shows a clinical decision rather than an empty slot.